Thanks to everyone. I have pretty much decided to keep my 24 - 105L. I really haven't given it a good chance anyway. I traded for it because I wanted to try it out, but just haven't been able to get to it.

I purchased a 17 - 55 used (6 months old) for a pretty good deal (I think). Anyway, I will not get it until Friday. With the Holidays coming up, I should be able to give them both a good work out - especially since my 7D is auto focusing better.